NAME

fatm - device driver for Fore PCA200E ATM interfaces

SYNOPSIS

devicefatmdeviceutopiadeviceatmoptionsNATM

DESCRIPTION

The fatm device driver supports the FORE (now Marconi) PCA200E ATM
interface cards. The driver interfaces with the natm(4) framework,
netgraph(4) and HARP. It provides only PVC services. Signalling,
ATMARP, ILMI and other higher layer protocols are implemented using
netgraph(4) or HARP.
For configuring the card for IP see natmip(4). The following sysctls are
recognized by the driver additionally to those handled by utopia(4):
hw.atm.fatmN.stats
Returns a device specific statistic list of uint32_t statistic
counters.
hw.atm.fatmN.istats
Returns a list of uint32_t with internal driver statistics.
hw.atm.fatmN.retry_tx
If this is set packets are stuffed back into the interface’s send
queue when the cards transmit queue is found to be full. They
are transmitted later. If this is not set the packets are
dropped. It may be useful to set this if only UBR traffic is
sent.
hw.atm.fatmN.debug(Onlyifdebuggingenabled.) These are debugging flags. See
src/sys/dev/fatm/if_fatmvar.h for the possible flags.
The driver supports the media options sdh, noscramb and unassigned (see
utopia(4)).